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Search Publications by: Kathleen Weigandt (Fed)

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Displaying 26 - 41 of 41

Simultaneous Slit Rheometry and In Situ Neutron Scattering

March 1, 2018
Author(s)
Javen Scott Weston, Daniel P. Seeman, Daniel L. Blair, Paul Salipante, Steven Hudson, Kathleen Weigandt
In situ measurement of fluid structure during flow, e.g., by neutron scattering, is key to understanding the relationship between structure and rheology. For some applications, structures at high shear rates heretofore unreachable are of particular

New Insights into the Flow and Microstructural Relaxation Behavior of Biphasic Cellulose Nanocrystal Dispersions from RheoSANS

December 7, 2017
Author(s)
Alexander D. Haywood, Kathleen Weigandt, Partha Saha, Matthew Noor, Micha J. Green, Virginia A. Davis
Understanding microstructure and shear response is a prerequisite for the controlled and predictable assembly of anisotropic nanomaterials into large area structures. Much of the framework for understanding the rheological behavior of lyotropic dispersions

Acid-Induced Assembly of a Reconstituted Silk Protein System

August 10, 2017
Author(s)
A. Pasha Tabatabai, Kathleen Weigandt, Daniel L. Blair
The chemical reconstitution of silk cocoons into stable aqueous suspensions allows for the creation of new classes of strong, biocompatible, and biodegradable silk materials. The addition of 8 mM hydrochloric acid to a reconstituted silk solution induces

Effect of Interlamellar Interactions on Shear Induced Multilamellar Vesicles Formation

July 21, 2017
Author(s)
Youhei Kawabata, Robert David Bradbury, S. Kugizaki, Kathleen Weigandt, Y. B. Melnichenko, K. Sadakane, N. L. Yamada, H. Endo, Michihiro Nagao, H. Seto
Shear-induced multilamellar vesicle (MLV) formation has been studied by means of small-angle neutron scattering (SANS) technique coupled with neutron spin echo (NSE) spectroscopy. A mass fraction of 10% of nonionic surfactant pentaethylene glycol dodecyl

Scattering Studies on Poly(3,4-ethylenedioxythiophene) Polystyrenesulfonate in the Presence of Ionic Liquids

December 22, 2015
Author(s)
Ryan J. Murphy, Kathleen Weigandt, David Uhrig, Ahmed Alsayed, Chantal Badre, Larry Hough, Murugappan Muthukumar
The demand for lower-cost and flexible electronics has driven industry to develop alternative transport electrode (TE) materials to replace Indium Tin Oxide (ITO). ITO is the benchmark TE on the market, but its high cost and low flexibility limits it for

Quantifying "Softness" of Organic Coatings on Gold Nanoparticles using Correlated Small-Angle X-Ray and Neutron Scattering

December 9, 2015
Author(s)
Benjamin T. Diroll, Kathleen Weigandt, Davit Jishkariani, Matteo Cargnello, Ryan J. Murphy, Lawrence A. Hough, Christopher B. Murray, Bertrand Donnio
Small angle X-ray and neutron scattering provide powerful tools to selectively characterize the inorganic and organic components of hybrid nanomaterials. Using hydrophobic gold nanoparticles coated with several commercial and dendritic thiols, the size of